Lordiphosa neokurokawai (Singh & Gupta)

Fartyal, Rajendra S., Sati, Pradeep C., Pradhan, Sushmika, Kandpal, Mukul C., Toda, Masanori J., Chatterjee, Rabindra N., Singh,, 2017, A review of the genus Lordiphosa Basden in India, with descriptions of four new species from the Himalayan region (Diptera, Drosophilidae), ZooKeys 688, pp. 49-79: 49-51

publication ID

http://dx.doi.org/10.3897/zookeys.688.12590

publication LSID

lsid:zoobank.org:pub:9FD88178-8285-43D8-9A6E-560287FE0199

persistent identifier

http://treatment.plazi.org/id/3E340B4F-2837-2C5B-04B7-AACBB9C94BF6

treatment provided by

ZooKeys by Pensoft

scientific name

Lordiphosa neokurokawai (Singh & Gupta)
status

 

Lordiphosa neokurokawai (Singh & Gupta)  Fig. 1

Drosophila (Hirtodrosophila) neokurokawai  Singh & Gupta, 1981: 207.

Lordiphosa neokurokawai  : Zhang, 1993b: 145.

Specimens examined.

CHINA: 1♂, Sichuan, Mt. Emei, 2,000 m a.s.l., 19 July 1992; 1♂, 1♀, Yunnan, Kunming, 22 March 2005 (all in SEHU).

Diagnosis.

Sex combs composed of thick setae of all, approximately 15 TBRs on anteroventral surface of tarsomere I, of four distal TBRs on tarsomere II and of two distal TBRs on tarsomere III (Fig. 1B). Cercus ventrally broadest, nearly horizontally truncated, with approximately seven large, stout spines on ventral margin (Fig. 1C). Gonopod not concaved proximally on posterior margin in lateral view (Fig. 1E). Paramere basally with strong knob, subapically without spinule (Fig. 1D, E). Female abdominal tergite VIII without setae (Fig. 1F). Oviscapt with approximately 100 small, trichoid lateral ovisensilla (Fig. 1F). Spermathecal capsule apically not indented (Fig. 1G).

Description

(supplementary and revised). Adult male.Head. Eye with interfacetal setulae. Approximately 15 supracervical setae thin, apically more or less curved and pointed; postocular setae approximately 18; occipital setae 30-31, including medial tiny ones. Dorsolateral arms of tentorial apodeme divergent, nearly straight, reaching to fronto-orbital plate; dorsomedial arm 1/3 as long as dorsolateral arm. Interspace between antennal sockets narrower than half of socket width; first flagellomere with only one small invaginated pouch ( “sacculus” called by earlier taxonomists: Ferris 1965); arista with 4-5 dorsal and one ventral branches in addition to terminal fork. Facial carina slightly elevated, narrower and shorter than first flagellomere, without setulae below. Subvibrissal seta distinctly shorter than vibrissa; additional row of oral setulae present above marginal row on anterior portion. Palpus with one prominent terminal and several short, subapical to lateroventral setae, without setulae on basal lobe. Cibarium (Fig. 1A) thickened on anterior margin, not dilated laterad in anterior portion; anterolateral projections shorter than half width of anterior margin; dorsal sclerite pear-shaped in dorsal view, anteriorly convex in lateral view; anterior sensilla two pairs, widely arranged in square behind anterior margin of hypopharynx; 23-26 medial sensilla arranged in anteriorly slightly convergent rows; two sensilla campaniformia; posterior sensilla very long, trichoid, gently curved forward, approximately 17 arranged in anteriorly divergent rows; somewhat sclerotized, thickened (in lateral view), anterior portion of hypopharynx shorter than 1/5 length of cibarium. Prementum ventrally slightly expanded. Labellum with five pseudotracheae per side.

Thorax. Postpronotal lobe with two prominent setae. Posterior dorsocentral seta situated nearer to anterior margin of scutellum than to anterior dorsocentral seta. Prescutellar setae absent. One or a few acrostichal setulae in lines with and anterior to dorsocentral setae thicker and longer than others. Mid katepisternal seta shorter than anterior katepisternal seta; anterior katepisternal seta thicker than aristal branches; no setula present anteriorly to anterior katepisternal seta.

Wing hyaline. Veins light brown; crossveins not clouded; bm-cu crossvein absent; R2+3 nearly straight; R4+5 and M1 nearly parallel. Two C1 setae unequal in size.

Legs. Foreleg tarsus with neither tuft of dense, soft hairs nor long setae. Foreleg tarsomere I as long as three succeeding tarsomeres together; midleg one slightly longer than three succeedings together; hindleg one slightly longer than rest together.

Abdomen. Setigerous sternite VI present.

Terminalia (Fig. 1 C–E). Epandrium shallowly and widely notched on posterior mid-dorsal margin (Fig. 1C), nearly entirely pubescent except antero-lateral to -ventral margin, gently curved on caudosubmedial margin near articulation to surstylus, ventrally narrowing but apically somewhat roundish and not sclerotized, with approximately16 setae on medial to dorsal portion, approximately six setae on ventral lobe and unpubescent, inward fold on caudoventral margin. Surstylus articulated to epandrium, simple plate longer than wide and apically round, with 8-9 prensisetae on caudodorsal margin and 42-43 recurved setae on ventral portion of inner surface but neither pubescence nor peg-like setae on outer surface (Fig. 1C). Cercus separated from epandrium, nearly entirely pubescent except for lateral margin, with 32-33 setae (Fig. 1C). Membrane between cercus and epandrium pubescent dorsally. Lateral lobe of tenth sternite larger than median lobe. Hypandrium anteriorly fringed with arched apodeme, slightly pubescent on caudolateral plates fused to gonopod, with a pair of narrow sclerotized processes connecting between bases of parameres and lateral margins of hypandrium (Fig. 1D). Paramere long, sclerotized process curved ventrad medially and outward apically (Fig. 1D, E). Aedeagal basal processes degenerated. Gonopods fused with each other, forming roof-like plate posteriorly surrounding aedeagus (Fig. 1E).

Adult female. Head, thorax, wings and legs as in male, except for absence of sex combs on foreleg tarsus.

Terminalia (Fig. 1F, G). Tergite VIII entirely narrow, pubescent only on posterior portion (Fig. 1F). Epiproct and hypoproct entirely pubescent and setigerous (Fig. 1F). Oviscapt subapically broadest, apically triangular, with approximately 13 and 9 apically blunt, peg-like ovisensilla on apico-ventral and -dorsal margins, respectively; subapical, trichoid ovisensillum as long as largest, marginal one (Fig. 1F). Spermathecal capsule ellipsoidal; introvert half as deep as capsule height; outer duct not wrinkled in distal 1/3 (Fig. 1G).

Distribution.

Southwestern China (Sichuan*, Yunnan), India (West Bengal) [* new record].

Remarks.

This species was first described by Singh and Gupta (1981) based on three male specimens collected from Darjeeling, West Bengal, India. Later, Zhang (1993b) reported this species from southwestern China, based on some male and female specimens collected from Kunming, Yunnan, but did not describe the female characters. Here, the description of the female is provided, with a supplementary and revised description for male based on the specimens collected from southwestern China.